Python

def getinvitembyname(item_name):
	item_count = 0
    inv_items = get_inventory()['items']
	if inv_items != []:
		for inv_item in inv_items:
			if inv_item != None:
				if inv_item['name'] == item_name:
					item_count += inv_item['quantity']
	return item_count

i got a problem plugin fail to load when i add this method.